these days its a must!..by the way ,Ruy!...check your ucip(ETS)for rust if you got it for more then a year cause some evom members were surprised when they looked inside the pipe
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HKS intake,ETS ucip,mini battery/NISEI licp/AGP 3.5"fmic and oil catch can/EPM open dump o2 housing/DP/TP/LHT spec 3"exhaust/GSC S1 cams/FORGE RS bov